100+ Free Cameroon GCE O-Level Physics Practice Questions

Mechanics & General Physics

Physical quantities and SI units, measurement tools (vernier callipers, micrometer screw gauges), scalar and vector quantities, velocity-time and displacement-time graphs, equations of motion ($v = u + at$, $s = ut + \frac{1}{2}at^2$, $v^2 = u^2 + 2as$), Newton's laws of motion, linear momentum and impulse, mass, weight, and density, moments of forces and equilibrium, work, energy, power, mechanical efficiency, and pressure in solids, liquids, and gases (Archimedes' principle, hydraulic press, barometers, manometers).

Thermal Physics

Kinetic particle theory of matter, thermal expansion of solids, liquids, and gases, bimetallic strips, temperature measurement and thermometer types, gas laws (Boyle's law, Charles's law, Pressure law, ideal gas equation), heat capacity and specific heat capacity ($Q = mc\Delta\theta$), specific latent heat of fusion and vaporization ($Q = mL$), cooling curves, evaporation versus boiling, and thermal energy transfer by conduction, convection, and radiation (vacuum flask applications).

Waves, Sound & Optics

General wave properties, wave equation ($v = f\lambda$), transverse and longitudinal waves, electromagnetic spectrum order and uses, laws of reflection and plane mirrors, refraction of light, Snell's law, refractive index, critical angle and total internal reflection (optical fibres, periscopes), converging and diverging lenses, ray diagrams, magnification formula, human eye defects and correction, sound generation, speed of sound, echoes and sonar calculations, pitch and loudness.

Electricity & Magnetism

Electrostatic charges, charging by friction and induction, electric field lines, electric current ($I = Q/t$), potential difference and electromotive force, Ohm's law, resistance factors (length, area, resistivity), series and parallel resistor combinations, electrical energy and power ($P = IV, E = IVt$), domestic electricity and safety (fuse, earth conductor, harmonised cable colours), magnetic field patterns of bar magnets and solenoids, hard and soft magnetic materials, electromagnetism, motor effect (Fleming's left-hand rule), electromagnetic induction (Faraday's and Lenz's laws, Fleming's right-hand rule), step-up/step-down transformers, and basic electronics: the distinction between conductors and semiconductors, conduction by electrons and holes, doping, and n-type and p-type material.

Atomic & Nuclear Physics

Nuclear model of the atom (protons, neutrons, electrons), nuclide notation ($^A_Z X$), isotopes, nature and ionizing properties of alpha ($\alpha$), beta ($\beta$), and gamma ($\gamma$) radiation, background radiation, radioactive decay equations, half-life definition and decay calculations, nuclear fission and fusion, peaceful applications of radioisotopes, and radiation safety precautions.